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Old 17-06-2007, 01:52 AM posted to uk.rec.gardening
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Default Petrol Lawn Mower problem

Mountfield petrol rotary mower with a Briggs Stratton engine.No
problem starting. When accelarating to cut the lawn it is mis firing
and black smoke emits from the exhaust.
New plug fitted. cleaned air filter.
Where do I go next please.to solve the problem?
Peter.


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Old 17-06-2007, 09:06 AM posted to uk.rec.gardening
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Default Petrol Lawn Mower problem

On Sat, 16 Jun 2007 16:52:43 -0700, Peter C
wrote:

Mountfield petrol rotary mower with a Briggs Stratton engine.No
problem starting. When accelarating to cut the lawn it is mis firing
and black smoke emits from the exhaust.
New plug fitted. cleaned air filter.
Where do I go next please.to solve the problem?
Peter.


Black smoke indicates that the fuel/air mixture is too rich.
Carburation varies greatly across the Briggs & Stratton engine range
so it's difficult to generalise about what to do. You need to check
the service info for your particular engine to find out how to clean
jets/adjust mixture. If you get BLUE smoke, that's burning oil caused
by engine wear.
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Old 17-06-2007, 10:14 AM posted to uk.rec.gardening
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Default Petrol Lawn Mower problem


"Peter C" wrote in message
ps.com...
Mountfield petrol rotary mower with a Briggs Stratton engine.No
problem starting. When accelarating to cut the lawn it is mis firing
and black smoke emits from the exhaust.
New plug fitted. cleaned air filter.
Where do I go next please.to solve the problem?


Is it a two-stroke engine?

If so, the petrol needs to be mixed with the appropriate oil.

--
Brian
"Fight like the Devil, die like a gentleman."


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Old 17-06-2007, 10:59 AM posted to uk.rec.gardening
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Default Petrol Lawn Mower problem

On Sun, 17 Jun 2007 08:06:56 +0100, Jupiter wrote:

You need to check the service info for your particular engine to find
out how to clean jets/adjust mixture.


Which can be down loaded from the B&S website.

--
Cheers
Dave. pam is missing e-mail



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Old 18-06-2007, 01:05 AM posted to uk.rec.gardening
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Default Petrol Lawn Mower problem

On 17 Jun, 09:59, "Dave Liquorice" wrote:
On Sun, 17 Jun 2007 08:06:56 +0100, Jupiter wrote:
You need to check the service info for your particular engine to find
out how to clean jets/adjust mixture.


Which can be down loaded from the B&S website.

--
Cheers
Dave. pam is missing e-mail


Thanks to all. Jets/mixture was the problem
Peter



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